<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link href="//unpkg.com/layui@2.9.6/dist/css/layui.css" rel="stylesheet">
    <script src="//unpkg.com/layui@2.9.6/dist/layui.js"></script> 
    <title>{% block title %}{% endblock %}</title>
    {% block css %}{% endblock %}
</head>
<body>
<header>
    辽河石化公司投诉信箱
</header>
{% block content %}

{% endblock %}

{% block js %}

{% endblock %}
</body>
</html>